//
//  Feed.swift
//
//  Copyright (c) 2016 - 2018 Nuno Manuel Dias
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to deal
//  in the Software without restriction, including without limitation the rights
//  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
//  copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in all
//  copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//  SOFTWARE.
//

import Foundation

public enum Feed {
    case atom(AtomFeed)
    case rss(RSSFeed)
    case json(JSONFeed)
}

// MARK: - Convenience properties

extension Feed {
    
    public var rssFeed: RSSFeed? {
        switch self {
        case .rss(let rssFeed): return rssFeed
        case .atom(_): return nil
        case .json(_): return nil
        }
    }

    public var atomFeed: AtomFeed? {
        switch self {
        case .rss(_): return nil
        case .atom(let atomFeed): return atomFeed
        case .json(_): return nil
        }
    }

    public var jsonFeed: JSONFeed? {
        switch self {
        case .rss(_): return nil
        case .atom(_): return nil
        case .json(let jsonFeed): return jsonFeed
        }
    }

}
